The LITTELFUSE CIO-EN is an Ethernet CIO module designed for Modbus communication in industrial automation. This module supports both Modbus TCP and RTU protocols, facilitating reliable data exchange. Constructed with durable materials, it is suitable for harsh environments. Its compact dimensions allow for easy integration into existing systems. The CIO-EN complies with relevant industry standards, ensuring compatibility with a wide range of devices. Perfect for applications requiring efficient data handling, this module enhances system performance and reliability.